當點擊“編輯”按鈕以後,可以看到“更新”和“取消”按鈕,“取消”按鈕可以正常觸發RowCancelingEdit事件,但是“更新”按鈕不能觸發RowUpdating事件。解決方案:在<asp:CommandField>中添加 CausesValidation="false" 。 Gridview RowUpdating Not Firing (RowUpdating event not firing on update button click for GridView
1、 用程式中,保證在實現功能的基礎上,盡量減少對資料庫的訪問次數;通過搜尋參數,盡量減少對錶的訪問行數,最小化結果集,從而減輕網路負擔;能夠分開的操作盡量分開處理,提高每次的響應速度;在資料視窗使用SQL時,盡量把使用的索引放在選擇的首列;演算法的結構盡量簡單;在查詢時,不要過多地使用萬用字元如SELECT * FROM T1語句,要用到幾列就選擇幾列如:SELECT COL1,COL2 FROM T1;在可能的情況下盡量限制盡量結果集行數如:SELECT TOP 300
Now you could try it yourself:--First, we create a inline-table function which returns a table Create Function dbo.ufnFunctionTest (@param int, @param1 int) returns table AS RETURN ( select 1 as id ) --Then,
Format the Date The Date field displays date and time information by default. You can format it to display only the date. To format a date fieldClick the Design tab.Right-click the cell with the [Date] field expression and then click Text Box
HTML 4.0 Event AttributesNew to HTML 4.0 is the ability to let HTML events trigger actions in the browser, like starting a JavaScript when a user clicks on an HTML element. Below is a list of attributes that can be inserted into HTML tags to define